Power Supply in Inductor (PSI2)

SUMIDA offers a new range of fully integrated power modules

Sumida has developed a proprietary technology for POL power modules where all components are integrated inside the inductor. In contrast to more traditional approaches this technology offers some key advantages:

The full size inductor has the lowest possible losses, giving the module a very high efficiency.
The magnetic material provides shielding to minimize noise and EMI.
The magnetic material has good thermal conductivity, avoiding any hot spots in the module.

Two product ranges are available immediately

SPM1004: 12Vdc input Point of Load (POL) Module producing up to 6 amps output current (0.8Vdc to 5Vdc) with no heat sink. Power Module is only 2.8 mm high by 9 mm wide and 15 mm in length.
SPM1005: 5Vdc Point of Load (POL) Module producing up to 6 amps output current (0.8Vdc to 3.3Vdc) with no heat sink. Power Module is only 2.8 mm high by 9 mm wide and 11 mm in length.

Convenience and reliability

These modules are very easy to use. They look like an inductor but are actually a complete power module. All you need to add are the input and output decoupling capacitors. All high current switching circuits are internal so there is no need to worry about board layout affecting the operation.
Each and every production power module is extensively tested, so you can rest assured. In contrast, a POL using discrete components on the user’s motherboard may have undetected modes of failure not caught during system testing. This is because most power supply functions – voltage regulation, ripple, current limiting, overvoltage shutdown, etc – cannot easily be tested when the power supply is connected to the rest of the system, as it is with a discrete POL solution.

Applications